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DeltaH^(Theta)underset(f)' 298K of metha...

`DeltaH^(Theta)underset(f)' 298K` of methanol is given by the chemical equation

A

`CH_(4)(g)+(1)/(2)O_(2)(g)toCH_(3)OH(g)`

B

`C("graphite")+(1)/(2)O_(2)(g)+2H_(2)(g)toCH_(3)OH(l)`

C

`C("diamond")+(1)/(2)O_(2)(g)+2H_(2)(g)toCH_(3)OH(l)`

D

`CO(g)+2H_(2)(g)toCH_(3)OH(l)`

Text Solution

Verified by Experts

The correct Answer is:
B
In the process of formation, the compound must be formed from constituent elements in their standard state.
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